engine MERCEDES-BENZ METRIS 2016 MY16 Operator’s Manual

Warning/
indicator
lampNSignal type
Possiblec auses/consequences and M
Solutions
ò!NThe yellow ABS warning lamp is lit while the engine is running.
ABS has been deactivated due to amalfunction. BAS, hil lstart assist and ESP®as
wel lasi ts driving safety systems ,for example, are therefore als odeactivated.
ATTENTION ASSIST is deactivated and other driving systems coul dbeautomati-
call ydeactivated.
GWARNING
The brake system continues to function normally, but without the functions listed
above. The wheels coul dtherefore lock prematurely if you brake hard ,for example.
This causes steerability and braking to be greatly impaired .The braking distance
can increas einemergency braking situations.
If ESP
®is not operational ,ESP®wil lnot stabilize the vehicle.
There is an increased risk of skidding and accidents.
XObserve the display messages.
XDrive on with care.
XVisi taq ualified specialist worksho pimmediately.
If the ABS control unit is faulty, there is als oapossibility that other systems ,such
as the automatic transmission, wil lberestricted or unavailable.
÷NThe yellow ESP®warning lamp flashes while the vehicleisinm otion.
ESP®or traction control is intervening because there is arisk of skidding or at least
one whee lhas started to spin.
Cruise control is automatically deactivated.
XWhen starting off, do not depress the accelerator pedalm ore than is necessary.
XEase off the accelerator pedalwhile driving.
XAdapt yourdriving style to sui tthe weather and road conditions.
XDo not deactivate ESP®.
In rare cases ,itmay be best to deactivate ESP®(Ypage64).
÷NThe yellow ESP®warning lamp is lit while the engine is running.
ESP®,B AS, hil lstart assist, ESP®trailer stabilization and Crosswind Assist are
unavailable due to amalfunction.
ATTENTION ASSIST is deactivated and other driving systems coul dbeautomati-
call ydeactivated.
GWARNING
The brake system continues to function normally, but without the functions listed
above.
The braking distance in an emergency braking situation can thus increase.
If ESP
®is not operational ,ESP®wil lnot stabilize the vehicle.
There is an increased risk of skidding and accidents.
XObserve the display messages.
XDrive on with care.
XVisi taq ualified specialist worksho pimmediately.
Indicator and warning lamps in the instrument cluster221
On-board computer and displays
Z

Warning/
indicator
lampNSignal type
Possiblec auses/consequences and M
Solutions
åNThe yellow ESP®OFF warning lamp is lit while the engine is running or the ECO
start/stop function is activated.
ESP
®is deactivated. ESP®trailer stabilization and Crosswind Assist are deacti-
vated.
GWARNING
If ESP
®is deactivated, vehicles tabilization assistance is significantly reduced.
There is an increased risk of skidding and accidents.
XReactivate ESP®.
In rare cases ,itmay be best to deactivate ESP®(Ypage64).
XAdapt you rdriving style to sui tthe weather and road conditions.
If ESP
®cannot be activated:
XDrive on with care.
XHave ESP®checked at aqualified specialist workshop.
6NThe red restraint system warning lamp is lit while the engine is running.
The restraint system is faulty.
GWARNING
The air bag sorEmergency Tensioning Devices may either be triggere duninten-
tionally or, in the event of an accident, may not be triggered.
There is an increased risk of injury.
XObserve the display messages.
XDrive on with care.
XHave the restraint system and its components checked immediatel yataquali-
fied specialist workshop.
Further information on the restraint system and its components can be found
under "Occupant safety "(
Ypage43).
222Indicator and warning lamps in the instrument cluster
On-board computer and displays

Engine
Warning/
indicator
lampNSignaltype
Possible causes/consequences and M
Solutions
;NThe yellow CheckE nginew arning lamp lightsupw hile theengine is running.
Therem ay beamalfunction, for example:
Rin th eengine management
Rin th etransmission management
Rin th efuel injection system
Rin th eexhaust system
Rin th eignition system (for vehicle swithagasoline engine)
Rin th efuel system
The emission limit values may be exceeded and th eengine may be runnin gin
emergency mode.
XHav ethe vehicle checked as soon as possible at aqualified specialist workshop.
æNThe yellow reservef uel warning lamp is on while th eengine is running.
The fuel leve lhas dropped to th ereserver ange.
XRefuel at th enearest gas station.
?NThe red coolant warning lamp comes on while th eengine is running.
On vehicle swithout steering wheel buttons, th ecoolant temperatur egage is at the
start of th ebar display (
Ypage 172).
On vehicle swith steering wheel buttons ,the coolant temperatur egage is at the
start of th escale in th einstrumentc luster(
Ypage 37).
The temperatur esensor for th ecoolant temperatur egage is faulty.
The coolant temperatur eisnolonger beingm onitored. Thereisar isk of engine
damag eifthecoolant temperatur eistoohigh.
XStop th evehicle immediately, payinga ttention to road and traffic conditions,
and switch off th eengine .Don otcontinue driving unde rany circumstances.
XSecure th evehicle to prevent it from rolling away (Ypage 132).
XConsult aqualified specialist workshop.
Indicator and warning lamps in th einstrumen tcluster223
On-boardc omputer and displays
Z

Warning/
indicator
lampNSignal type
Possiblec auses/consequences and M
Solutions
?NThe red coolant warning lamp comes on while the engine is running.
The coolant leve listoo low.
If the coolant leve liscorrect, the airflow to the engine radiator may be blocked or
the electric engine radiator fan may be malfunctioning.
The coolant is too hot and the engine is no longer being cooleds ufficiently.
XObserve the display messages.
XStop the vehicleimmediately, paying attention to road and traffic conditions,
and switch off the engine.
XSecure the vehicletop revent it from rolling awa y(Ypage132).
XExit the vehiclea nd keepasafe distance from the vehicleu ntil the engine has
cooledd own.
XCheck the coolant leve land add coolant, observing the warning notes
(Ypag e244).
XIf you have to add coolant more frequently, have the engine cooling system
checked.
XMake sure that the air supply to the radiator is not obstructed ,byfrozen slush
for example.
XCheck the coolant temperature:
Rusing the display in the on-board computer on vehicles without steering wheel
buttons (Ypag e172)
Rusing the analog display in the instrument cluster on vehicles with steering
whee lbuttons (Ypag e37)
XDo not start the engine again until the coolant temperature is below the maxi-
mum valu especified below. The engine coul dotherwise be damaged.
XDrive to the neares tqualified specialist workshop.
Avoid heavy loads on the engine, e.g. driving in mountainous terrain, and stop-
and-go traffic.
Under normal operating conditions and with the specified coolant level, the cool-
ant temperature gage may rise to 248 ‡(120 †).
?NThe red coolant warning lamp comes on while the engine is running. An addi-
tional warning tone sounds.
The coolant temperature has exceededt he maximumvaluespecified below. The
airflow to the engine radiator may be blocked or the coolant leve lmay be too low.
GWARNING
The engine is not being cooleda dequately and couldbecome damaged.
Never drive with an overheated engine. Otherwise, fluids which may have leaked
into the engine compartment coul dcatch fire.
In addition, steam from an overheated engine can caus eserious burns, which can
occur just by opening the hood.
There is arisk of injury.
XObserve the display messages.
XStop the vehiclei mmediately, paying attention to road and traffic conditions,
and switch off the engine.
XSecure the vehicletop revent it from rolling awa y(Ypage 132).
224Indicator and warning lamps in the instrument cluster
On-board computer and displays

Warning/
indicator
lampNSignal type
Possiblec auses/consequences and M
Solutions
XExit the vehicleand keepasafe distance from the vehicleu ntil the engine has
cooledd own.
XCheck the coolant leve land add coolant, observing the warning notes
(Ypag e244).
XIf you have to add coolant more frequently, have the engine cooling system
checked.
XMake sure that the air supply to the radiator is not obstructed ,byfrozen slush
for example.
XCheck the coolant temperature:
Rusing the display in the on-board computer on vehicles without steering wheel
buttons (Ypag e172)
Rusing the analog display in the instrument cluster on vehicles with steering
whee lbuttons (Ypag e37)
XIf the coolant temperature is below the maximu mvaluespecified below, you can
continue driving to the neares tqualified specialist workshop.
Avoid heavy loads on the engine, e.g. driving in mountainous terrain, and stop-
and-go traffic.
Under normal operating conditions and with the specified coolant level, the cool-
ant temperature gage may rise to 248 ‡(120 †).
Driving systems
Warning/
indicator
lampNSignal type
Possiblec auses/consequences and M
Solutions
·NThe red distance warning lamp lights up while the vehicleisinm otion.
The distance to the vehicleinf ront is too smallfor the speeds elected.
XIncrease the distance.
·NThe red distance warning lamp lights up while the vehicleisinm otion. An
additiona lwarning tone sounds.
You are approaching avehicl eoras tationary obstacl einyourline of travel at too
high aspeed.
XBe prepared to brake immediately.
XPay particular attention to the traffic situation. You may have to brake or take
evasive action.
Further information about the distance warning function can be found under
"COLLISION PREVENTION ASSIST" (
Ypag e143).
Indicator and warning lamps in the instrument cluster225
On-board computer and displays
Z

Vehicle
Warning/
indicator
lampNSignal type
Possibl ecauses/consequences and M
Solutions
ÐNThe red powe rsteering warning lamp is li twhile the engine is running .Anaddi-
tional warning tone sounds.
The steering powe rassis tance could be malfunctioning .You mayn eedtos teer
more forcefully.
XCarefull ycontinue to aquali fied specialist workshop and have the steering
checked immediately.
1N The yellow "door open" indicator lamp is lit.
Ad oorisn ot fully closed.
XClose the doors.
Indicator and warning lamps in the instrumen tcluster227
On-board computer and displays
Z

XTo use the cigarette lighter:turn the key to
position 1in the ignition lock.
XPress in cigarette lighter :.
The cigarette lighte rwillp op outa utomati-
cally when the heating element is red-hot.
XPull the cigarette lighte routof the socke tby
its handle.
The cigarette lighte rsocke tcan be used for
accessorie switham aximu mp ower consump-
tio no f180 W(15 A).
If yo uusethe sockets to connect accessories
for long periods when the engine is switched off, the starter battery may discharge .Anemer-
genc ycut-off ensures thatt he on-board voltage
does not dro ptoo low. If the on-board voltag eis
too low, powe rtothe socke tisa utomatically
cut. Thi sensures thatt hereiss ufficient power
to start the engine.
12 Vsocke t
Whenthe key is turne dtoposition 1in the igni-
tio nlock, the sockets can be used for accesso-
rie sw itham aximu mp ower consumption of
180 W(15 A) .
If yo uuse the sockets for long periods whe nthe
engine is switched off, the starter battery may discharge
.Ifthe on-board voltage is too low ,it
mightt hen no longe rbepossibl etostart the
engine.
The socket in the center console and the socket
in the side of the cargo compartment are not
automatically deactivated if the on-board volt-
age is low .The additiona lsockets in the rear
compartment are automatically deactivated if
the on-board voltage is low.
Additional 12 Vsockets may be located in the
corner trim next to the tailgate and in the side
trim on the left and right-hand sides.
XLift up the cover of socket :.
Mobile communications equipment
GWARNING
Operating mobile information systems and
communication devices while driving wil ldis-
tract you from traffic conditions. In addition,
you coul dthen lose control of the vehicle.
There is arisk of an accident.
Only operate these devices whe nthe vehicle
is stationary.
Observe the legal requirements for the country
in which you are currently driving whe noperat-
ing mobile communication equipment.
Please remember, anavigatio nsystem does not
supply information on the load-bearing capacity
of bridges or the overhead clearance of under-
passes. The drive rremains responsibl efor
safety at al ltimes.
You and others can suffe rhealth-related dam-
age throug helectromagneti cradiation. By using
an exterior antenna, apossibl ehealth risk
caused by electromagneti cfields, as discussed
in scientifi ccircles, is taken into account. Only
have the exterior antenna installed by aqualified
specialist workshop.
Failure to observe the Mercedes-Benz installa-
tion specifications can result in the invalidation of you rvehicle's operating permit.
You wil lfind information on retrofitting electrical
or electronic equipment unde r“Vehicle elec-
tronics” (
Ypag e294).
Mobile communications equipment231
Stowing and features
Z

In the event of an accident, haveadamaged
cargo compartment floor or loading area ,the
cargo tie-down rings and the tie down checked
at as pecialist workshop. Otherwise ,the load
may not be correctly secured the next time any-
thing is stowed.
Even if you follow all loading guidelines, the load
increases the risk of injury in the event of an
accident. Observe the information in the "Secur- ing aload "(
Ypage 234) and "Loa ddistribution"
(Ypage 233) sections.
You wil lfind information abou tthe maximum
roof load and maximum tailgate load in the
"Cargo tie-down points and carrier systems"
section (
Ypage 304). You wil lfind information
abou troof carriers under "Carrier systems"
(
Ypage 238).
Before loading
!
The anti-slip mats cannot be used for secur-
ing goods and must be replaced when they
show signs of:
RPermanent deformatio nand crushing
RCrack formation
RCuts
XTire pressure: check the tire pressure and
correct if necessary (Ypage 270).
XCargo compartment floor: clean the cargo
compartment floor.
The cargo compartment floor must be free
from oil and dust, dry and swept clean to pre-
vent the load from slipping.
XPlace non-slip mats (anti-slip mats) on the
cargo compartment floor if necessary.
During loading
XObserve the gross axle weight rating and per-
missible gross vehicle weight for you rvehicle.
Take into account that you rvehicle's curb
weight is increased if accessorie soroptional equipment are installed. The maximum pay-
load is thus reduced.
XObserve the notes on load distribution
(Ypage 233).
The overal lcenter of gravity of the load should
always be as low as possible, centered and
betwee nthe axles near the rear axle.
XObserve the legalr equirements of the country
in which you are currently driving.
Checks after loading
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. If the tail-
gate/rear door is open when the engine is
running, particularly if the vehicle is moving,
exhaust fumes could enter the passenger
compartment. There is arisk of poisoning.
Turn off the engine before opening the tail-
gate/rear door. Never drive off with the tail-
gate/rear door open.
XSecuring luggage/loads: make sure that
the luggage and/or load is secure before
every journey and at regular intervals during a
long journey, and correct it if necessary.
XDoors/tailgate: close the sliding doors and
tailgate/door.
XTire pressure: adjust the tire pressure
according to the vehicle load (Ypage 270).
XDrivin gstyle: adapt you rdriving style
according to the vehicle load.
Load distribution
General notes
!
Excessive load sonindividual points of the
cargo floor or on the load surface impair vehi-
cle handling characteristics and could cause
damage to the floor covering.
The overal lcenter of gravity of the load should
always be as low as possible, centered and
betwee nthe axles near the rear axle.
Load distribution233
Transporting loads
Z

Useful information
This Operator's Manual describes all models as
well as standard and optional equipment of your
vehicle that were available at the time of going
to print.Country-specific variation sare possi-
ble. Note that your vehicle may not be equipped
with all of the described functions. This also
applies to system sand function srelevantt o
safety.
Read the information on qualified specialist
workshops (
Ypage 29).
Engine compartment
Hood
Important safetyn otes
GWARNING
If the hood is unlatched, it may open up when the vehicle is in motion and block your view.
There is arisk of an accident.
Never unlatc hthe hood while driving. Before
every trip, ensure that the hood is locked.
GWARNING
Openin gthe hood when the engin eisover-
heated or when ther eisafire in the engine
compartmen tcould expose you to hot gases
or other servicep roducts. There isarisk of
injury.
Let an overheated engin ecool down before
openin gthe hood. If ther eisafire in the
engin ecompartment, keep the hood closed
and contact the fire department.
GWARNING
The engin ecompartmen tcontains moving
components. Certain components, such as
the radiator fan, may continue to run or start
again suddenly when the ignition is off. There is ar isk of injury.
If you need to do any work inside the engine
compartment:
Rswitc hoff the ignition
Rneve rreach int othe area where ther eisa
risk of danger from movingc omponents,
such as the fan rotation area
Rremovej ewelry and watches
Rkeep items of clothing and hair, for exam-
ple, away from movingp arts
GWARNING
The ignition system operate swithahigh volt-
age. If you touc hthe live components, you
could receiv eanelectric shock.T here is an
increased risk of injury.
Never touc hcomponents of the ignition sys-
tem if:
Rthe engin eisrunning or being started
Rthe key is in radio position or drive position
in the ignition lock
The live components of the ignition system are,
for example:
Rignition coils
Rspark plug connectors
Rdiagnostic sockets
GWARNING
Certain components in the engin ecompart-
ment ,such as the engine, radiator and parts
of the exhaust system ,can becomev ery hot.
Working in the engin ecompartmen tposes a
risk of injury.
Where possible, let the engin ecool down and
touc honly the components described in the
following.
If you have to carry out work in the engin ecom-
partment ,only touc hthe following components:
RHood
ROil dipstick
REngine oil filler nec kcap
RWasher fluid reservoir cap
RCoolant expansion tan kcap
240Engine compartment
Maintenance and care

Opens the hood
GWARNING
Openingt he hood when the engine is over-
heated or when there is afire in the engine
compartment could expose you to hot gases
or other servicep roducts. There isarisk of
injury.
Let an overheated engine cool down before
opening the hood. If there is afire in the
engin ecompartment ,keep the hood closed
and contact the fire department.
GWARNING
Certain component sinthe engine compart-
ment ,such as the engine ,radiator and parts
of the exhaust system, can become very hot.
Workin ginthe engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the component sdescribed in the
following.
!Make sure that the windshield wipers are
not folded away from the windshield. You
could otherwise damage the windshield wip-
ers or the hood.
Observe the safety notes when you open the
hood.
XStop your vehicle as far away from traffic as
possible on level ground.
XSwitc hoff the engine.
XSecure the vehicle to preventitf rom rolling
away (Ypage 132).
XPull release handle :on the hood.
The hood is released.
XReach into the gap and push lever ;on the
hood catc htothe left.
XRaise the hood and hold it in that position.
XPull support strut ?out of retainer =and
guide it up in the direction of the arrow.
XLower the hood in such away that support
strut ?glides into recess Aand the hood
engages.
Closing the hood
GWARNING
Cloths or other flammable materials left in the
engin ecompartment can ignite if they come
into contact with the exhaust system or parts
of the engin ethat heat up. There is arisk of
fire. After carrying out maintenanc ework,
make sure that no extraneous flammable
material is left in the engin ecompartment or
on the exhaust system.
GWARNING
Openingt he hood when the engin eisover-
heated or when there is afire in the engine
compartment could expose you to hot gases
Engine compartment241
Maintenance and care
Z